某改建项目深基坑紧邻原基础及地铁隧道的综合施工技术

Comprehensive Construction Technology of a Deep Excavation Reconstruction Project Close to the Original Foundation and Subway Tunnel

广东省友谊剧院改造工程主要是对沿街的建筑主体在原址处予以保留、改造,而舞台及南面附楼均为原址范围内拆除重建,整个施工场地非常狭小,基坑围护结构紧贴原建筑物基础及商业服装城,且基坑下方有地铁二号线通过,施工技术要求高且难度大,文中着重介绍旧建筑结构保护、高压旋喷桩施工、基坑土方开挖、信息化监测等主要施工措施及其效果。

Friendship Theatre renovation project in Guangdong Province is the main street at the main building at the site be retained,modified.The theater's stage and the south annex building are demolition and reconstruction within the site.The construction site is very small,close to the original building foundation based envelope and business clothing city,and the foundation beneath the Metro line through the construction,so technical requirements for construction are high and difficult.The paper focuses on protection of old structures,high pressure jet piles,foundation excavation,construction and other major information technology monitoring measures and its effect.